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third and one-half order Fresnel lens

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Summary

Key Facts

  • third and one-half order Fresnel lens is a type of Fresnel lens[1].
  • third and one-half order Fresnel lens's Commons category is recorded as Third and one-half order fresnel lenses[2].
  • third and one-half order Fresnel lens's series ordinal is recorded as 3.5[3].
  • third and one-half order Fresnel lens's focal length is recorded as {'unit': 'http://www.wikidata.org/entity/Q174789', 'amount': '+375'}[4].
  • third and one-half order Fresnel lens's related category is recorded as Category:Lighthouses with third and one-half order Fresnel lenses[5].

Body

Definition and Type

third and one-half order Fresnel lens is a type of Fresnel lens[1].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [1] ↑ . wikidata.org.
  2. [2] ↑ . wikidata.org.
  3. [3] ↑ . wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . wikidata.org.

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Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). third and one-half order Fresnel lens. Retrieved May 7, 2026, from https://4ort.xyz/entity/third-and-one-half-order-fresnel-lens
MLA “third and one-half order Fresnel lens.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/third-and-one-half-order-fresnel-lens.
BibTeX @misc{4ortxyz_third-and-one-half-order-fresnel-lens_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{third and one-half order Fresnel lens}}, year = {2026}, url = {https://4ort.xyz/entity/third-and-one-half-order-fresnel-lens}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): third and one-half order Fresnel lens — https://4ort.xyz/entity/third-and-one-half-order-fresnel-lens (retrieved 2026-05-07)

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